Unreal Engine Issues

NavigationSystem can end up with NULLs in NavDataSet after user deleting navigation data instances in the editor

UE4 3rd Person Blueprint PIE Caused Kernel Panic on iMac/AMD 6770M

When I was running the default 3rd person shooter template which had no modifications yet, I pressed play and began to move around. Within a few seconds, the computer shut off as if the power cord h ...

VR Preview causes the editor to freeze on Mac

When trying to use the VR preview with the oculus rift for a Mac the editor freezes up and has to be shut down. ...

Planar Reflection seems to render inverted

Planar Reflections seem to be inverted on mobile devices. The angles seem to be off too. ...

PlayLevel PlayStandaloneLocalPc( ) appears to be calling UE4Editor from engine binaries which can prevent game specific scripts from loading

PlayStandaloneLocalPc is used when user launches Standalone Game from editor, which loads the .uproject from UE4Editor in Engine binaries instead of loading project from project binaries. ...

Audio Persists and App becomes Unresponsive when Opening Map and Calling Movies to Load

A licensee is experiencing odd behavior when using custom code to call a loading movie when opening/loading a level. The licensee has implemented a loading movie to play when calling a map to open ...

FCDODiffControl doesn't properly account for lists of differing size.

FCDODiffControl doesn't properly account for lists of differing size. The issues are marked in the following code:int IterOld = 0; int IterNew = 0; while (IterOld != OldProperties.Num() || IterNew ...

Sequence Recorder mishandles certain skeletal meshes when recording

Sequence Recorder mishandles certain skeletal meshes when recording. I THINK this is because of unused leaf bones in the bone hierarchy (See the skeleton tree). [Link Removed] Note: This charact ...

[CrashReport] UE4Editor_LeapMotion!FPrivateLeapImage::Texture32FromLeapImage()

Error message: Access violation - code c0000005 (first/second chance not available) Source Context: 2707 { 2708 FScopeCycleCounterUObject ComponentScope(Target); 2709 FScopeC ...

UCS continuously runs while a blueprint's thumbnail in content browser is focused

Blueprints with a mesh call the UCS continuously when focusing the thumbnail in the content browser. This is easily visible with a Print String in the UCS causing log spam. This does not occur in ...